Launching today
KeJi
Lecture notes that jump back to the exact second
2 followers
Lecture notes that jump back to the exact second
2 followers
KeJi is a small Chrome / Edge extension for students who learn from video. Take notes while a lecture plays — every note remembers the exact second you wrote it. Click the note later and the video jumps back to that second. Notes appear as paw prints on the progress bar. Snip on-screen text with Alt+Shift+S, use popup, floating or side-panel layouts, search and export notes as Markdown. Free, no account — everything stays in your browser.
Free
Launch Team
Framer AI AgentsDesign and publish professional sites with AI
Promoted
Hi, I'm Zhiyuan — I built KeJi because I kept scrubbing back through lecture videos to find the moment I meant to note down. KeJi just remembers the second for you: write a note, tap its timestamp later, and you're back at that exact moment. The paw prints on the progress bar are my favourite part. It's free, on the Chrome Web Store and Edge Add-ons — happy to answer anything about how it works.